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Cochlear implants, hearing loss

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https://www.readbyqxmd.com/read/28087418/degeneration-of-auditory-nerve-fibers-in-guinea-pigs-with-severe-sensorineural-hearing-loss
#1
Steven Kroon, Dyan Ramekers, Emma M Smeets, Ferry G J Hendriksen, Sjaak F L Klis, Huib Versnel
Damage to and loss of the organ of Corti leads to secondary degeneration of the spiral ganglion cell (SGC) somata of the auditory nerve. Extensively examined in animal models, this degeneration process of SGC somata following deafening is well known. However, degeneration of auditory nerve axons, which conduct auditory information towards the brainstem, and its relation to SGC soma degeneration are largely unknown. The consequences of degeneration of the axons are relevant for cochlear implantation, which is applied to a deafened system but depends on the condition of the auditory nerve...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28079462/establishing-the-standard-method-of-cochlear-implant-in-rongchang-pig
#2
Wei Chen, Haijin Yi, Liang Zhang, Fei Ji, Shuolong Yuan, Yue Zhang, Lili Ren, Jianan Li, Lei Chen, Weiwei Guo, Shiming Yang
CONCLUSIONS: In this investigation, a large mammal, Rongchang pigs were used to successfully establish a research platform for cochlear implant study on the routine use of it in clinic. OBJECTIVE: The aim of this study was to establish a standard method of cochlear implant in a large mammal-pig. METHODS: Rongchang pigs were selected, then divided into two groups: normal-hearing group (Mitf +/+) and mutation group with hearing loss (Mitf -/-)...
January 12, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28078408/-rehabilitation-in-children-and-adults-an-overview
#3
A Illg
BACKGROUND: The rehabilitation of patients with hearing loss includes technical, medical, and therapeutic education interventions. The success of cochlear implant (CI) treatment depends on joint coordination and execution of all measures. During the history of CI, expansion of the spectrum of indication criteria has led to evolution of auditory-verbal therapy, speech therapy, and auditory training. MATERIALS AND METHODS: This paper describes the current status of therapeutic knowledge and experience of hearing and speech therapeutic rehabilitation in children and adults...
January 11, 2017: HNO
https://www.readbyqxmd.com/read/28067750/unilateral-hearing-loss-understanding-speech-recognition-and-localization-variability-implications-for-cochlear-implant-candidacy
#4
Jill B Firszt, Ruth M Reeder, Laura K Holden
OBJECTIVES: At a minimum, unilateral hearing loss (UHL) impairs sound localization ability and understanding speech in noisy environments, particularly if the loss is severe to profound. Accompanying the numerous negative consequences of UHL is considerable unexplained individual variability in the magnitude of its effects. Identification of covariables that affect outcome and contribute to variability in UHLs could augment counseling, treatment options, and rehabilitation. Cochlear implantation as a treatment for UHL is on the rise yet little is known about factors that could impact performance or whether there is a group at risk for poor cochlear implant outcomes when hearing is near-normal in one ear...
November 4, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28060175/cochlear-nerve-deficiency-and-brain-abnormalities-in-pediatric-patients
#5
Thierry Morlet, Markian Pazuniak, Robert C O'Reilly, Vinay Kandula, Arabinda K Choudhary
HYPOTHESIS: To investigate the intracranial abnormalities present in children with cochlear nerve deficiency (CND), including abnormalities of other cranial nerves, and to describe their auditory abilities. BACKGROUND: The prevalence of CND has increased with the development of high resolution magnetic resonance imaging (MRI). There are varying degrees of CND from true aplasia to hypoplasia. The etiology of CND remains unclear and it may be associated with intracranial abnormalities in some instances...
January 4, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28060022/otosclerosis-an-update-on-diagnosis-and-treatment
#6
Lora Batson, Denise Rizzolo
Otosclerosis is a complex and progressive disease of pathological bone remodeling that affects the otic capsule of the temporal bone, resulting in hearing loss. Although traditional diagnostic methods are still used, improvements in technology and research have paved the way for additional diagnostic techniques and advancements. The traditional treatment of otosclerosis, stapes surgery, is now being augmented or replaced by innovations in hearing aid technology and cochlear implants. Earlier diagnosis of otosclerosis can occur through understanding of the cause, risk factors, and current diagnostic testing...
January 5, 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28059448/change-in-loneliness-after-intervention-with-cochlear-implants-or-hearing-aids
#7
Kevin J Contrera, Yoon K Sung, Joshua Betz, Lingsheng Li, Frank R Lin
OBJECTIVE: To investigate the impact of hearing aid (HA) and cochlear implant (CI) use on loneliness in adults. STUDY DESIGN: Prospective observational cohort study. METHODS: One hundred and thirteen adults, aged ≥ 50 years, with postlingual hearing loss and receiving routine clinical care at a tertiary academic medical center, were evaluated with the University of California at Los Angeles Loneliness Scale before and 6 and 12 months after intervention with HAs or CIs...
January 6, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28049117/rare-cause-of-bilateral-sudden-deafness
#8
F I Vos, P Merkus, E B J van Nieuwkerk, E F Hensen
In this paper, we describe the case of a 62-year-old female with recurring episodes of sudden deafness with vertigo and facial paresis. Within a month's time, this resulted in bilateral deafness and vestibular areflexia. Erroneously, the patient was diagnosed with sudden deafness of unknown origin and subsequently with neuroborreliosis (Lyme disease). The true diagnosis of relapsing polychondritis (RP) was revealed 9 months after initial presentation. The diagnostic delay is in part explained by the fact that, by definition, the disease has to relapse before the diagnosis can be made, but also by its pluriform clinical presentation...
October 8, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/28039993/vowel-and-consonant-confusions-from-spectrally-manipulated-stimuli-designed-to-simulate-poor-cochlear-implant-electrode-neuron-interfaces
#9
Mishaela DiNino, Richard A Wright, Matthew B Winn, Julie Arenberg Bierer
Suboptimal interfaces between cochlear implant (CI) electrodes and auditory neurons result in a loss or distortion of spectral information in specific frequency regions, which likely decreases CI users' speech identification performance. This study exploited speech acoustics to model regions of distorted CI frequency transmission to determine the perceptual consequences of suboptimal electrode-neuron interfaces. Normal hearing adults identified naturally spoken vowels and consonants after spectral information was manipulated through a noiseband vocoder: either (1) low-, middle-, or high-frequency regions of information were removed by zeroing the corresponding channel outputs, or (2) the same regions were distorted by splitting filter outputs to neighboring filters...
December 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28033698/balance-performance-of-deaf-children-with-and-without-cochlear-implants
#10
Amir-Abbas Ebrahimi, Guita Movallali, Ali-Ashraf Jamshidi, Hojjat Allah Haghgoo, Mehdi Rahgozar
 The aim of this study was to compare the static and dynamic balance performance of deaf children with and without cochlear implants. This is a cross-sectional study of 145 school children, aged between 7 and 12 years comprising 85 children with congenital or early acquired bilateral profound sensorineural hearing loss (the hearing loss group) and 60 normal hearing aged-matched control counterparts were assessed using the balance subtest of Bruininks-Oseretsky test of Motor Proficiency (BOTMP). The hearing loss group, 50 without cochlear implants (the non-implant group) and 35 of them with unilateral cochlear implants (the implant group) were recruited from schools for the deaf and normal hearing children (the control group) randomly selected from two randomly selected elementary schools of Tehran city...
November 2016: Acta Medica Iranica
https://www.readbyqxmd.com/read/28012522/comparison-of-intelligence-quotients-of-first-and-second-generation-deaf-children-with-cochlear-implants
#11
K Amraei, S Amirsalari, M Ajalloueyan
Hearing impairment is a common type of sensory loss in children. Studies indicate that children with hearing impairment are deficient in social, cognitive and communication skills. This study compared the intelligence quotients of first- and second-generation deaf children with cochlear implants. This research is causal-comparative. All 15 deaf children investigated had deaf parents and were selected from Baqiyatallah Cochlear Implant Center. The 15 children with cochlear implants were paired with similar children with hearing parents using purposive sampling...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28010677/cochlear-implantation-in-chronic-demyelinating-inflammatory-polyneuropathy
#12
Sarah E Mowry, Sarah King
OBJECTIVE: To describe a case of chronic inflammatory demyelinating polyneuropathy (CDIP) with bilateral sudden sensorineural hearing loss who subsequently benefited from unilateral cochlear implantation. METHODS: case history review and review of the literature for the terms CDIP, hearing loss, cochleovestibular dysfunction, and cochlear implantation. RESULTS: A 49-year-old woman presented with bilateral rapidly progressive sensorineural hearing loss (SNHL) 1 month after an upper respiratory tract infection...
December 23, 2016: Cochlear Implants International
https://www.readbyqxmd.com/read/28004525/uk-tertiary-centre-experience-of-outcomes-from-osseointegrated-transcutaneous-magnetic-bone-conduction-hearing-system-implanted-in-twenty-five-patients-using-a-linear-incision-technique
#13
S Sharma, G Reddy-Kolanu, A H Marshall
Bone-anchored hearing aids are an established means of managing both single-sided and bilateral conductive or mixed hearing loss. Magnetic bone conduction hearing implants have been designed to provide an alternative bone conduction system to the existing aids which couple to a traditional percutaneous abutment. The BAHA(®) Attract (Cochlear Bone Anchored Solutions AB. Mölnlycke, Sweden) system, which has been reviewed, uses an osseointegrated titanium implant coupled to an implantable magnet. This article is protected by copyright...
December 22, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28002081/children-with-cochlear-implants-and-their-parents-relations-between-parenting-style-and-children-s-social-emotional-functioning
#14
Lizet Ketelaar, Carin H Wiefferink, Johan H M Frijns, Carolien Rieffe
OBJECTIVES: Parenting a child who has a severe or profound hearing loss can be challenging and at times stressful, and might cause parents to use more adverse parenting styles compared with parents of hearing children. Parenting styles are known to impact children's social-emotional development. Children with a severe to profound hearing loss may be more reliant on their parents in terms of their social-emotional development when compared with their hearing peers who typically have greater opportunities to interact with and learn from others outside their family environment...
December 19, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/27995277/-cochlear-implant-treatment-of-patients-with-single-sided-deafness-or-asymmetric-hearing-loss-german-version
#15
S Arndt, R Laszig, A Aschendorff, F Hassepass, R Beck, T Wesarg
BACKGROUND: The rehabilitation of patients with single-sided deafness (SSD) or asymmetric hearing loss can be achieved with conventional (bilateral) contralateral routing of signals ((Bi)CROS) hearing aids ((Bi)CROS-HA, (Bi)CROS), bone-anchored hearing systems (BAHS) or cochlear implants (CI). To date, only small case series have been published on treatment outcomes in SSD patients after CI surgery and there are only a few comparative studies evaluating rehabilitation outcomes. OBJECTIVE: The aim of this study was to provide evidence of successful treatment of SSD and asymmetric hearing loss with a CI compared to the untreated monaural hearing condition and the BAHS and (Bi)CROS treatment options in a large number of patients...
December 19, 2016: HNO
https://www.readbyqxmd.com/read/27960585/challenges-for-the-application-of-optical-stimulation-in-the-cochlea-for-the-study-and-treatment-of-hearing-loss
#16
Rachael T Richardson, Alexander C Thompson, Andrew K Wise, Karina Needham
Electrical stimulation has long been the most effective strategy for evoking neural activity from bionic devices and has been used with great success in the cochlear implant to allow deaf people to hear speech and sound. Despite its success, the spread of electrical current stimulates a broad region of neural tissue meaning that contemporary devices have limited precision. Optical stimulation as an alternative has attracted much recent interest for its capacity to provide highly focused stimuli, and therefore, potentially improved sensory perception...
December 22, 2016: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/27958602/severe-to-profound-deafness-may-be-associated-with-myh9-related-disease-report-of-4-patients
#17
P Canzi, A Pecci, M Manfrin, E Rebecchi, C Zaninetti, V Bozzi, M Benazzo
MYH9-related disease (MYH9-RD) is a rare genetic syndromic disorder characterised by congenital thrombocytopenia and is associated with the risk of developing progressive sensorineural hearing loss, nephropathy and presenile cataracts during childhood or adult life. All consecutive patients enrolled in the Italian Registry for MYH9-RD with severe to profound deafness were included in a retrospective study. The study population involved 147 Italian patients with MYH9-RD: hearing loss was identified in 52% of cases and only 4 patients (6%) presented severe to profound deafness at a mean age of 33 years...
October 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/27939998/cochlear-implantation-in-autistic-children-with-profound-sensorineural-hearing-loss
#18
Magdalena Lachowska, Agnieszka Pastuszka, Zuzanna Łukaszewicz-Moszyńska, Lidia Mikołajewska, Kazimierz Niemczyk
INTRODUCTION: Cochlear implants have become the method of choice for the treatment of severe-to-profound hearing loss in both children and adults. Its benefits are well documented in the pediatric and adult population. Also deaf children with additional needs, including autism, have been covered by this treatment. OBJECTIVE: The aim of this study was to assess the benefits from cochlear implantation in deafened children with autism as the only additional disability...
November 19, 2016: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/27937030/cochlear-implantation-a-review-of-current-clinical-practice
#19
Daniel Hajioff
Cochlear implants treat severe hearing loss by providing direct electrical stimulation to auditory nerve endings. This article reviews the clinical assessment, surgical procedure and outcomes, and looks at newer developments such as preservation of residual hearing and bilateral implantation.
December 2, 2016: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/27933290/validation-of-a-cochlear-implant-patient-specific-model-of-the-voltage-distribution-in-a-clinical-setting
#20
Waldo Nogueira, Daniel Schurzig, Andreas Büchner, Richard T Penninger, Waldemar Würfel
Cochlear Implants (CIs) are medical implantable devices that can restore the sense of hearing in people with profound hearing loss. Clinical trials assessing speech intelligibility in CI users have found large intersubject variability. One possibility to explain the variability is the individual differences in the interface created between electrodes of the CI and the auditory nerve. In order to understand the variability, models of the voltage distribution of the electrically stimulated cochlea may be useful...
2016: Frontiers in Bioengineering and Biotechnology
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